Gasket.



- To all whom it may concern:

I improved and.

7 hereinafter described an the gasket, Fig, 1, made of metal and prefer-UNITED sfrnrrns Plirnivr onirica.

GASKET.

. l Specication of Letters Patent. Application filed latch 2, 1908.Serial No. 418,858.

No. 906,761. f Patented Dec. 15, 19'08.

' v be secured and that said contact may be dis- Be it known-that I,JOHNv C; WHITE, ofthe turbed as little as possible by theexpansion cityof Madison, county `of Dane, and State ofand contraction due to changesof tempera- Wisconsin, have invented a certain new and ture andpressure. 2'. That its dimensions Improved Gasket, of which thefollowing is a be such as will give it strength equal to thatspecification. of the connecting pipes in resisting internal The objectto provide l pressure. 3. That its form be such that a reliable means ofmaking joint is made as nearly as possible at the injoints between theflanges of .pipes and iitner diameterof the pi es, so that a smoothtings used for the transmission of fluids uncontinuous passage is orrnedand pockets or der high pressures and'temperatures. de ressions for thecollection of liquids and The invention is exem lied in the device seiment are avoided, and that its area of it is deined in the surfacecontact be reduced, if necessary, by the removal of part of the metalofthe body of the gasket so as to leave one or more annu lar seats orbearings slightly raised above the of this invention is ap ended claim.l

n the drawings forming part of this s eci'- iicationFigure 1 is anelevation of one orm of the device and Fig. 2 is a section of Fig. 1 online A. B. Fig. 3 is a section of pipes and flanges showing the gasket,Fig. 1, in place.

In Fig. 3, 1, 1, are pi es: 2, 2, are'l'langes, formed, welded orattacied by other suitable ineans to pipes 1, 1A: 3, 3, are bolts forbolting {langes 2, 2, together: 4, 4, are recesses formed in the flanges2, 2, and pipes 1, 1, the purpose of which is t0 hold the parts trulycentral with each other in assembling: 5 is due to the tension of thebolts is concentrated.

The device is distinguished from the other metal gaskets now in use, inthat it is made of a material having, as nearly samephysical propertiesas connecting ipes are made, and in depending, for its abso ute contactat the joints, on the flowing of the metal of both the gasket and thepipes or lianges and not on the flo'wing or llexure of the metal of thegasket only. No grinding, scraping or special preparation of thesurfaces is required, a plain'machine iinish being su'flicient.

What I do claim as m sire to secure by Letters atent, is

A gasket made of solid metal, having, as nearly as possible, the samephysical properf ties as that of which the connecting pipes are made,its inner and outer diameters the same as those of the connecting pipes,and having its area of surface contactsol restricted that a high unitpressure on the gasket can be sef cured substantially as described.

vIn testimon hereof I sign my name in the presence o 4two subscribingwitnesses.

as possible, the

ably formed by cutting short sections or rings of the tubing of whichpipes 1, 1, are made, the object being to secure a firm, strong gaskethaving an exp ansion ratio and ductility as nearly as possi le the sameas that of the connecting dpipes. The grooves or recesses 6, 6, forme inthe sides of gasket 5, are for the purpose of reducing the surfacerareasin ,contact so that a high unit pressure, sufficient to cause the metalof the gasket and pipes to low and lill all irregxularitiesand'crevices, may be secured by t e tension set up in the bolts 3, 3. l

The essential elements of the device are :i 1. That it be made of ametal having the same physical properties as the'material'of JNO.- C.WHITE. l the connecting pipes, so that better contact Witnesses: at thejoints, ,due to the ilowing and inter- WINIFRED Timm,

locking of the molecules of the material, may SPENCER A. InosE.

body of the gasket and on which the pressure that of whichthe inventionand de-

